science

Removable bolt

Removable bolt is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Removable bolt rather than just read about it. In short: A removable bolt (or RB), in climbing, is a spring loaded metal camming device used to anchor a person or a load to a rock or cement wall temporarily. Removable bolts negate the need to install permanent protection bolts to the wall, which can be costly and cause cosmetic damage.

Key takeaways

Removable bolt belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Removable bolt to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Removable bolt from memory before moving on to harder problems.

Reference excerpt

A removable bolt (or RB), in climbing, is a spring loaded metal camming device used to anchor a person or a load to a rock or cement wall temporarily. Removable bolts negate the need to install permanent protection bolts to the wall, which can be costly and cause cosmetic damage. RBs are designed for use in bolting new sport climbing routes, setting temporary anchors on traditional routes, and on back-country expeditions where abandoning gear or placing permanent gear is not optimal. RBs are particularly popular when placing permanent bolts on steep walls with limited features, where other means of temporary protection, such as hooks, traditional camming devices, or slings, are not an option. By drilling a hole and inserting an RB, the bolter can ascend higher up on the rock before placing the next permanent piece of protection, thereby leaving a reasonable climbing distance between bolts on the finished route. RBs have also been designed and produced for fall prevention and safety in construction and mining operations. Originally produced in the mid 1990s, removable bolts were at first reported to become permanently lodged in the rock after anchoring a fall. In the early 2000s, several companies redesigned the RB and the equipment has received positive feedback from users. RBs are used almost exclusively in bolting and cleaning new lines, often steep limestone, which is soft enough to be drilled with relative ease, and is particularly difficult to bolt without some load bearing anchor. Removable bolts have been designed for particular climbing and industrial circumstances. ClimbTech's Kinder Edition Removable Bolt was designed for climber Joe Kinder, who required an RB that could be used on particularly dirty and moist rock. The additional surface area of the Kinder Edition RB provides better friction in these circumstances, and allowed Kinder and others to establish sport climbs in remote areas where variable rock quality necessitated careful bolt placement. The typical RB is a 1/2 inch stopper designed to fit into a mechanically drilled hole. Other sizes have been developed, and further customizations continue to appear.

References

http://www.rockandice.com/lates-news/climbtech-rb-anchor-and-perma-draw http://www.rockandice.com/lates-news/josh-wharton-the-alpinist http://www.upskillclimbinggear.com/products/Removable-Bolt.html http://www.dpmclimbing.com/climbing-videos/watch/climbtech-removable-bolts-rock-climbing http://www.mountainproject.com/v/removable-bolt-trial-by-fire-by-manufacturer/107502423 http://www.supertopo.com/climbing/thread.php?topic_id=743502 http://www.patrollersupply.com/equipment/item_193.asp http://www.dpmclimbing.com/articles/view/joe-kinder-bolting-next-generation

Worked examples

Example 1 — a first encounter with Removable bolt

Start with the simplest possible case. Write down what Removable bolt claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Removable bolt before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Removable bolt ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Removable bolt

In research: Removable bolt appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Removable bolt in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Removable bolt is common in secondary-school and first-year university syllabi. It links to neighbouring topics Climbing equipment, so understanding it makes those chapters shorter.
In everyday life: Look for Removable bolt outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Removable bolt in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Removable bolt means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Removable bolt out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Removable bolt in simple terms?

Why does Removable bolt matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Removable bolt?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Removable bolt.